ADUC831BS Circuit Board Chips Flash MCU IC Chip Original Electronics Components QFP

FEATURES

ANALOG I/O

8-Channel, 247 kSPS 12-Bit ADC

DC Performance: 1 LSB INL

AC Performance: 71 dB SNR

DMA Controller for High Speed ADC-to-RAM Capture 2 12-Bit (Monotonic)

Voltage Output DACs Dual Output PWM/- DACs

On-Chip Temperature Sensor Function 3C On-Chip Voltage Reference

Memory

62 kBytes On-Chip Flash/EE Program Memory

4 kBytes On-Chip Flash/EE Data Memory

Flash/EE, 100 Yr Retention, 100 kCycles Endurance 2304 Bytes On-Chip Data RAM

8051 Based Core 8051 Compatible Instruction Set (16 MHz Max) 12 Interrupt Sources,

2 Priority Levels Dual Data Pointer Extended 11-Bit Stack Pointer On-Chip Peripherals

Time Interval Counter (TIC) UART, I2 C®, and SPI® Serial I/O Watchdog Timer (WDT),

Power Supply Monitor (PSM) Power Specified for 3 V and 5 V Operation Normal, Idle,

and Power-Down Modes Power-Down: 20 A @ 3 V APPLICATIONS Optical Networking—

Laser Power Control Base Station Systems Precision Instrumentation, Smart Sensors

Transient Capture Systems DAS and Communications Systems Pin compatible upgrade

to existing ADuC812 systems that require additional code or data memory. Runs from

1 MHz–16 MHz to external crystal.

The ADuC832 is also available. Functionally is the same as the ADuC831, except the

ADuC832 runs from a 32 kHz external crystal with on-chip PLL.

ABSOLUTE MAXIMUM RATINGS* (TA = 25°C unless otherwise noted.)

AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

DVDD to DGND, AVDD to AGND . . . . . . . . . –0.3 V to +7 V

Digital Input Voltage to DGND . . . . –0.3 V to DVDD + 0.3 V

Digital Output Voltage to DGND . . . –0.3 V to DVDD + 0.3 V

VREF to AGND . . . . . . . . . . . . . . . . . –0.3 V to AVDD + 0.3 V

Analog Inputs to AGND . . . . . . . . . . –0.3 V to AVDD + 0.3 V

Operating Temperature Range Industrial ADuC831BS . . . . . . . . . –40°C to +125°C

Operating Temperature Range Industrial ADuC831BCP . . . .. . . . –40°C to +85°C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C θJA

Thermal Impedance (ADuC831BS) . . . . . . . . . . 90°C/W θJA

Thermal Impedance (ADuC831BCP) . . . . . . . . . 52°C/W

Lead Temperature, Soldering Vapor Phase (60 sec) . . . . . . 215°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

ORDERING GUIDE

A Part of Stock List

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